Lecturer: Arianna Callegari   Maria Cristina Collivignarelli  

Course name: Sanitary and environmental engineering
Course code: 502537
Degree course: Ingegneria Civile e Ambientale, Ingegneria Elettrica
Disciplinary field of science: ICAR/03
The course relates to:
University credits: ECTS 12
Course website: n.d.

Specific course objectives

At the end of the course (2 modules), students will have acquired knowledge related to the protection of the environment from pollution (module 1), as well as the main technologies for wastewater treatment, drinking water treatment, recovery/disposal of solid waste; students will also be able to perform the design of these plants (module 2).

Course programme

MODULE 2

WASTEWATER TREATMENT

• Characteristics of wastewater.
• Pre-treatment of urban wastewater (screening, grit and oil removal, ...).
• Primary settling (technologies and design criteria).
• Biological treatments: conventional activated sludge process (hydrodynamic models and management issues).
• Treatments for nutrient removal (plant schemes and fields of application).
• Secondary settling (sedimentation theory and design criteria).
• Effluent disinfection (design and choosing).
• Start-up procedures for activated sludge processes.
• Wastewater treatment plant monitoring and data processing criteria.
• Treatment of sewage sludge (technologies and design criteria).
• Regulation and legislation.
• Laboratory tests: Sludge Volume Index (SVI), respirometric tests, foaming tests, ...
• Technical tour to a wastewater treatment plant.

DRINKING WATER TREATMENT

• Overview on drinking water.
• Drinking water treatments: conventional processes.
• Plant schemes for the treatment of groundwater and surface water.
• Design of drinking water treatment plant.
• Laboratory tests: jar tests, Freundlich adsorption isotherm, …

MUNICIPAL SOLID WASTE TREATMENT

• Regulatory aspects in solid waste classification and management.
• Conventional and separate collection of municipal solid waste.
• Municipal solid waste selection plant (technologies and plant scheme).
• Composting (technologies and plant schemes).
• Solid waste incineration (kilns, gaseous emission characteristics, gas cleaning technologies).
• Sanitary landfill (classification, design and management criteria).
• Design of a mass burning kiln for municipal solid waste incineration.
• Landfill design.

Course entry requirements

Chemistry

Course structure and teaching

Lectures (hours/year in lecture theatre): 82
Practical class (hours/year in lecture theatre): 20
Practicals / Workshops (hours/year in lecture theatre): 5

Suggested reading materials

Metcalf & Eddy. Ingegneria delle Acque Reflue: Trattamento e Riuso. The McGraw-Hill Companies.

Collivignarelli Carlo, Bertanza Giorgio. Ingegneria Sanitaria-Ambientale. Città Studi Edizioni.

Collivignarelli Carlo, Sorlini Sabrina. Potabilizzazione delle acque - Processi e tecnologie. Dario Flaccovio Editore.

Testing and exams

For each module, the exam consists of a written test and an oral exam. The students have to pass the written test with 18/30 at least, and then they will take the oral exam. Both modules will be passed in the same exam session.